User manual NILFISK BK 900

[. . . ] 790 Total height without/with handle . . . . 390/1, 060 Total length without handle . . . . . . . . . . . . 1, 030 Working width with side brush . . . . . . . mm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Bent bristles can be straightened by laying the side brush in lukewarm water. · Remove dirt collecting tank. Always stand tank on feet on front side to prevent damage to the rubber strip. · Push side brush (1) onto shaft and tighten hexagon bolt (2) with open-end spanner without damaging hub. · Lay V-belt in groove of righthand wheel (3). · Mount side brush arm with pin (push in from outside) and retaining clip (4). Side brush must rotate anticlockwise when sweeper is pushed forward. 2. 3 Starting operation and functional check · Place tank on frame and swivel downward. · To remove tank, swivel upward by handle. 2. 3. 1 Mounting dirt collecting tank 2. 3. 2 Adjusting the side brushes 2 1 · Loosen knurled nut (1) and turn handwheel (2) until a maximum of 2/3 of brush circumference touches ground. Retighten knurled nut as anti-twist lock. 12 BK 900 2. 3. 3 Adjusting brush roller + 0 1 2 3 4 5 · Adjust brush pressure with handwheel. Adjustment can be checked on scale next to right-hand wheel. First follow our recommendations and then adapt brush pressure to wear of brush roller or, if necessary, to your local conditions. No. on scale 1 1. 5 2 Material swept light, dry Surface smooth Basic setting heavy, damp, rough, sticky uneven large quantity The side brush allows edges and corners to be swept clean. · Check the sweeping result and then correct the brush pressure if necessary. 2. 3. 4 Functional check · Push the machine at normal walking speed over the surface to be cleaned: The cleaning capacity is dependent on the working speed (number of revolutions of the brush roller). String, wire, packing tape and similar long objects should be picked up from the floor by hand and not swept up with the sweeping machine: This will help to maintain the 2. 4 Supervision of operation sweeping capacity of the machine and prevent machine damage caused by jamming of the drive. Empty the dirt collecting tank at regular intervals. Sweeping is no longer possible when the tank is full. · Loosen wing nuts on handle, spread handle apart somewhat and swivel forward. 2. 5 After completing work · Empty the dirt collecting tank. To transport or for space-saving storage: · Swivel up side brush arm 13 Operation NOTE!Excessively high roller pressure increases brush wear and requires greater pushing force. BK 900 3 Maintenance 3. 1 Important safety instructions CAUTION!Carry out only the maintenance work described in the operating instructions. Contact Alto Service for all other maintenance work. Use only original Alto accessories and spare parts. 3. 2 Maintenance and care 3. 2. 1 Replacing brush roller 1 2 Maintenance · Remove dirt collecting tank. · Swivel up side brush arm and tip machine back onto handle. [. . . ] · Remount dirt collecting tank. 3. 2. 4 Tensioning V-belt 2 1 · Swivel up side brush arm, unscrew screws (1) on roller bracket (2) and lift roller bracket out of rib. · Swivel roller bracket (diagram) and push into next detent. · Tighten screws, swivel down brush arm and check belt tension. Excessive tensioning of the Vbelt reduces the sweeping performance and leads to premature wear. 3. 2. 5 Sealing strips The sealing strips prevent dust from escaping during sweeping. [. . . ]